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      golang protobuf 尝试
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        <p>protobuf是比较好的一种序列化的工具，这里使用golang来试用一下protobuf</p>
<p> <a target="_blank" rel="noopener" href="https://github.com/golang/protobuf">protobuf模块</a>  <a target="_blank" rel="noopener" href="https://developers.google.com/protocol-buffers/docs/gotutorial">参考文档</a> </p>
<h1 id="准备工具"><a href="#准备工具" class="headerlink" title="准备工具"></a>准备工具</h1><p>安装命令</p>
<p><img src="https://swordhell.github.io/img/pic/20181201080640-install-go-protocol1.png"></p>
<p>安装效果</p>
<p><img src="https://swordhell.github.io/img/pic/20181201080640-install-go-protocol2.png"></p>
<p>环境变量配置</p>
<p><img src="https://swordhell.github.io/img/pic/20181201080640-install-go-protocol3.png"></p>
<h1 id="定义protobuf"><a href="#定义protobuf" class="headerlink" title="定义protobuf"></a>定义protobuf</h1><figure class="highlight protobuf"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br></pre></td><td class="code"><pre><span class="line">syntax = <span class="string">&quot;proto3&quot;</span>;</span><br><span class="line"><span class="keyword">package</span> example;</span><br><span class="line"></span><br><span class="line"><span class="class"><span class="keyword">message</span> <span class="title">Person</span> </span>&#123;</span><br><span class="line">  <span class="built_in">string</span> name = <span class="number">1</span>;</span><br><span class="line">  <span class="built_in">int32</span> id = <span class="number">2</span>;  <span class="comment">// Unique ID number for this person.</span></span><br><span class="line">  <span class="built_in">string</span> email = <span class="number">3</span>;</span><br><span class="line"></span><br><span class="line">  <span class="class"><span class="keyword">enum</span> <span class="title">PhoneType</span> </span>&#123;</span><br><span class="line">    MOBILE = <span class="number">0</span>;</span><br><span class="line">    HOME = <span class="number">1</span>;</span><br><span class="line">    WORK = <span class="number">2</span>;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  <span class="class"><span class="keyword">message</span> <span class="title">PhoneNumber</span> </span>&#123;</span><br><span class="line">    <span class="built_in">string</span> number = <span class="number">1</span>;</span><br><span class="line">    PhoneType type = <span class="number">2</span>;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">repeated</span> PhoneNumber phones = <span class="number">4</span>;</span><br><span class="line"></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">// Our address book file is just one of these.</span></span><br><span class="line"><span class="class"><span class="keyword">message</span> <span class="title">AddressBook</span> </span>&#123;</span><br><span class="line">  <span class="keyword">repeated</span> Person people = <span class="number">1</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h1 id="生成go文件"><a href="#生成go文件" class="headerlink" title="生成go文件"></a>生成go文件</h1><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">protoc.exe -I=D:/gopath/src/IDL --go_out=./ D:/gopath/src/IDL/addressbook.proto</span><br></pre></td></tr></table></figure>

<h1 id="编写序列化、反序列化代码"><a href="#编写序列化、反序列化代码" class="headerlink" title="编写序列化、反序列化代码"></a>编写序列化、反序列化代码</h1><p><a target="_blank" rel="noopener" href="https://github.com/protocolbuffers/protobuf/blob/master/examples/list_people_test.go">参考代码</a></p>
<figure class="highlight go"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> main</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> (</span><br><span class="line">	<span class="string">&quot;fmt&quot;</span></span><br><span class="line"></span><br><span class="line">	<span class="string">&quot;github.com/golang/protobuf/proto&quot;</span></span><br><span class="line"></span><br><span class="line">	pb <span class="string">&quot;octopus.com/test/test_protobuf/example&quot;</span></span><br><span class="line">)</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">func</span> <span class="title">main</span><span class="params">()</span></span> &#123;</span><br><span class="line"></span><br><span class="line">	p := &amp;pb.Person&#123;</span><br><span class="line">		Id:    <span class="number">1234</span>,</span><br><span class="line">		Name:  <span class="string">&quot;John Doe&quot;</span>,</span><br><span class="line">		Email: <span class="string">&quot;jdoe@example.com&quot;</span>,</span><br><span class="line">		Phones: []*pb.Person_PhoneNumber&#123;</span><br><span class="line">			&#123;Number: <span class="string">&quot;555-4321&quot;</span>, Type: pb.Person_HOME&#125;,</span><br><span class="line">		&#125;,</span><br><span class="line">	&#125;</span><br><span class="line"></span><br><span class="line">	fmt.Println(p)</span><br><span class="line"></span><br><span class="line">	out, err := proto.Marshal(p)</span><br><span class="line">	<span class="keyword">if</span> err != <span class="literal">nil</span> &#123;</span><br><span class="line">		fmt.Println(err)</span><br><span class="line">		<span class="keyword">return</span></span><br><span class="line">	&#125;</span><br><span class="line"></span><br><span class="line">	fmt.Println(out)</span><br><span class="line"></span><br><span class="line">&#125;</span><br><span class="line"></span><br></pre></td></tr></table></figure>

<p>输出：</p>
<figure class="highlight console"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">name:&quot;John Doe&quot; id:1234 email:&quot;jdoe@example.com&quot; phones:&lt;number:&quot;555-4321&quot; type:HOME &gt; </span><br><span class="line">[10 8 74 111 104 110 32 68 111 101 16 210 9 26 16 106 100 111 101 64 101 120 97 109 112 108 101 46 99 111 109 34 12 10 8 53 53 53 45 52 51 50 49 16 1]</span><br></pre></td></tr></table></figure>


      
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